ListingSummary webparts don’t work after upgrading to SharePoint 2010

If you upgrade your portal from SharePoint Point 2003 to SharePoint Server 2010.you will face many issues , especially if you are using Listing Summary web parts in SharePoint Portal 2003, because when you upgrade from SharePoint 2003 to Microsoft SharePoint Server 2007 , you find that the listing summery web part is obsolete now in MOSS 2007 and it’s replaced by Content Query Webpart

This following article shows the listingsummary class as obsolete in 2007.